Perhaps you should try some spelling variations:
"case management activity." » "case management activities.", "case management facility.", "case management authority.", "waste management activity.", "change management activity.", "asset management activity."
"reform management contract." » "farm management contract.", "firm management contract."
"oxford management tools." » "records management tools.", "fund management tools.", "flood management tools."
"land management water." » "land management case.", "land management data.", "land management a."
"land management based." » "land management case.", "land management board.", "land management issues."
"cash management contracts." » "asset management contracts."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("debt management control.") or ((("land management water.") or ("land management based."))))) or ((("case management activity.") or ("cash management contracts."))))) or ((("reform management contract.") or ("oxford management tools."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("debt management control.") OR ((("land management water.") OR ("land management based."))))) OR ((("case management activity.") OR ("cash management contracts."))))) OR ((("reform management contract.") OR ("oxford management tools.")))).
• Removing quotes may allow a broader search: (((((( debt management control. ) or ((( land management water. ) or ( land management based. ))))) or ((( case management activity. ) or ( cash management contracts. ))))) or ((( reform management contract. ) or ( oxford management tools. )))).
• Adding a wildcard symbol may retrieve word variants: (((((("debt management control.") or ((("land management water.") or ("land management based."))))) or ((("case management activity.") or ("cash management contracts."))))) or ((("reform management contract.") or ("oxford management tools."))))*.